Quantifying Neutralising Antibody Responses Against SARS-CoV-2 in Dried Blood Spots (DBS) and Paired Sera

Neutralizing antibody responses in sera, venous blood, and fingerstick blood stored on filter paper were measured. Samples were collected from SARS-CoV-2 acutely infected individuals, SARS-CoV-2 convalescent individuals, and SARS-CoV-2 vaccinated individuals.